Blast-furnace-charging apparatus.



A. P. AIKEN. I

BLAST FURNAGE GHARGUJG APPARATUS.

APPLIGATION FILED A'PR.25, 1G07.

4rights which by contact with 27 and 28 onV the coupling 26, rotate `this coupling and through the hollow rod 24 turn the rotarydeiector 25 when the rod 24 is` .turning jaws 31, 32 are attached to hollowneck portions 35 and 36 which extend through the bearings 29 and 30.

Keyed or otherwise secured to the outer ends of the necks35 and 36 are turning gears 37 and 38 and these gears are in mesh with gears 39 and 40 which are on the ends of the vertical shaft 41 which is mounted in the bearings 42, 43. Also mounted on the shaft 41 are oppositely facing lturning jaws 44 and 45 having inclined faces 46 and 47 and these jaws by contact with the lug 48 on the sleeve or coupling 26 on the bell rod 24, are rotated asthe coupling 26 and rod 24 are raised and lowered in operating the bell and through the gears 37 39 and 38, 40 rotate the turning jaws 31 and 32. The bearings-29, 30 and 42, 43 are secured together by uprights 49 and vertical guides are provided on these upthe lugs 48, 48a prevent turning of these lugs, when the sleeve 26 is rotated. f

In the operation of my im roved apparatus, .the stock is hoisted in t e skip cars 9 on the skip track 10 and is dumped into the sup lemental hopper 8. The upper bellx 12 is t en raised through the bell beam 14 and' the connecting mechanism by the bell actuating cylinder 18 and the stock in the ho per 8 is discharged in the hopper 5. As the ell 12 is raised the stock in t e hopfper 8 is directed inwardly toward the axis o the ho(pper by the sloping sides of the hopper 8 an strikes upon the inclined deflector or chute 25 which is secured to the lower end of the hollow b'ell rod 24, and is directed by this deflectorto one side of the hopper 5. The bell 12 is then lowered to close the mouth of the supplemental hoplper 8 and more stock is to t dum ed 1n 1s hopper by theskip cars 9.

The ell 12 is a am'raised and the stock is isbdirected by this eflector-to one side of the ho per 5. Successive charges ofjstock are de ivered into the' hopper 8 and it is discharged from the hopper Sinto, the hopper'5 until, the desired amount of material isin the lower hopper 5. The large bell 4closing the lower end of -the hoppier 5 is then lowered 'i are distributed and the charge of sto is delivered into the interior 2 of the furnace.'

The o eration `of raising and lowering the top bel 12 also. rotates the deflector 25 through a part of a revolution, as shown being slightly more than one Illlarter turn, and in this way, the successive s 'p loads of stock around the axis of. the lower faces 46, 47. By gearing the turnin again? discharge u on the de iector 25 and hopper in suchA manner as will equally distribute the coarse and fine materials within the interior of the furnace.

The above described operation is repeated as often as is necessary to keep the stock at the desired height within the furnace chamber 2. When the bell 12 is raised and lowered by means of the bell operating mechani lsm, the sleeve o1' coupling 26 on the upper end of the bell rod 24 is also raised and lowered and when this coupling is so actuated the oppositely facing lugs or projections 27 and 28 on contact with the inclined faces 33 and 34 on the turning jaws 31 and 32 and are turned through a part of a revolution and through the rod 24, turn the inclined deector 25 on .the lower end of this rod.

the opposite ends of the coupling As shown in the` drawings there are four I projecting jaws 31, 32 on each of the necks 35 and 36 and these jaws are rotatably mounted in the bearings 29 and 30.` .The

ends of the necks 35 and 36 areprovidedl with the gear wheels 37, 38 by meansof which the jaws 31, 32 arev rotated. The gears 37, 38 -mesh with similar gears 39 and 40 which are mounted upon the op osite en d of the vertical shaft 41, this shafteing carried in the bearings 42 and 43. Adjustably secured on the shaft 41 are turning j'aws 44 and 45 and the inclined faces 46, 47 o'f these jaws by contacting with the finger 48 forming part of the, cross head and which is raised and lowered by the opening and closing of the small bell 12, are turned on their axis and throu h the meshing gear wheels rotate these whee s and the projecting turningjaws 31, 32.

As shown in Fig. 3, the turning jaws 31, 32 i each have four inclined faces 33 and 34 while the turning jaws 44, 45 each have six turning mechanism as shown, each time the be 12 is lifted the bell rod 24 andl deflector 25 are turned one-eighth of a revolution bythe lugs 27 contacting with the inclined faces 33 on the turning 'aws 3l and when the bell rod 24 and inclined ered, the lug 28 on the lower end of the sleeve 26 contacts with and is turned by the inclined faces 34 on the turning jaws 32. The raising 26 through through the inclined Ifaces 46, 47 on the turni? ing jaws 44 and 45'and this shaft rotateajtlie gears 37, 38 through a part of a revolulion and the gears 37 38 rotate the'turnin'gijaws 31 and32.

It will be seen that by the above described operation that in addition to the am'ount the turnin jaws 31, 32 cause the inclined chute 25 to e rotated, the inclined 4jaws 44, 45, turn .the chute 25 an additional amount which will vary depending Iupon the ratio of and lowering movement of the sleevel the lug 48 also turns the shaft 41" ilo chute or deflector 25 is lowg/ting larger pieces of stockto"be charged ""yage of the coke is reducedthan is possible/with theth'roat construe/tion heretofore f used.

By llocating the inclined chute at a'point between the upper and lower bells the fallof tle stock is retarded and in this way break- By means of the turning mechanism for the chute 25, the stock is char ed into the hopper 5 and each charge is eposited in such manner that the chute 25 does not disute the coarse and fine materia sin the stock in layers within vthe furnace.

'Modifications in the construction and arrangement of the parts may be made and other than the turning mechanism showI/i/ may be used without departing from :ny-,inn

vention.

1. Apparatus for charging blast'furnaces comprising a bell and hopper discharging into the furnace, a stationaryjsupplementa hopper discharging radially inward-above the first hopper, an/inclined distributing lfirst hopper, sald su plemental hopper being chute or deflector between said hoppers and mechanism for ,rotating said distributing chute ord'eflecto'r substantiall as described.

2. Apparatus for charging last furnaces comprising'n bell and hopper, discharging into the furnace, a sup lemental belland hopper discharging radial y inward above the stationary, an inc ined deflector between said ho pers, and mechanism for rotating said de ector; substantially as described.

Apparatus for' charging, blast-'furnapes comprisin a bell and hopper'dischargmg into 'the urnace, a'su lemental bell and hopper discharglngraially inward aboove the first hopper, vfsaid supplemental hopper being stationary, a hood connecting said hoppers tog/form a gas seal, an inclined deilector between said hoppers and mechanism for. rotating said deflector,substantially as described. l l

4.' Apparatus for lcharging blast furnaces comprising a bell and hopper dischargin into' the furnace, a supplemental bell an l hopper discharging into the first ho per, means for opening and closing said bells, an inclined dcllector between said ho pers and mechanism adapted to-rotate sai( deflector when said supplemental bell is actuated;

substantially as described.

into the furnace, a stationary supplemental hopper disclarging radially inward above the first hopper, a rotating deflector or distributi/n/g ciute located below the supplemental hop er and mechanism for turning the rotary eiiector to distribute the stock o varying points about the axis of the bell and hopper; substantially as. described.

6. Apparatus" for charging blast furnaces com rising a bell and hop er/opening into the urnace, a sup leme'ntai)v above the first bel and vertically moving' said be s 1n opening and Eclosing the mouths of said hoppers, a deiiector or chute rotatably mounted between the bellsand ad vrpted to move vertically with the supplemental bell and mechanism for rotating said chute about the axis of said bells when/said supplemental bell'is raised and lowered; substantially as described.

7. Apparatus for charging blast furnaces comprising a bell and hoplper opening into the/furnace, a sup lementa bell and hopper above the iirst belli vand hopper, means for /vertically moving said bells 1n opening and closing the mouths of said hoppers, a dethe, bells and adapted Ito move vertically with the supplemental bell when said: bell is raised -to open thesupplemental hop erand mechanism for rotating saidchute w ien said supplemental bell is raised; substantially as described. v

8. In blast furnace 'charging apparatus, the combination of a vertically movable bell rod having a coupling or sleeve, lugs on said sleeve and turning jaws havin@ inclined faces ada ted to ycontact with 'said langs and rotate the ell rod; substantially as described.

9. In blast furnace charging' apparatus, the combination of a vertically movable bell ro'd having a coupling or sleeve, lugs on said sleeve and oppositely facingv turning jaws having inclined faces adapted to contact with said lugs and rotate the bell rod; substantially as described. i l

10. In blast furnace charging apparatus, the combination of a vertically movable bell rod h aving a coupling or sleeve, lugs on said sleeve, rotatable turning jaws having inand rotate the ell rod, a non-rotatablelug on said sleeve and a second set of rotatable turning jaws having inclined faces ada ted to contact with the non-rotatable lug am rotate the first set of turning j aws;- substantially as described.

11. In blast furnace charging apparatus, the combination of a vertically movable bell rod having a coupling or sleeve, lugs on said sleeve, oppositely facing rotatable' turning jaws havmg inclined faces adapted to coniiector or chute rotatably m'unted between clined faces ada ted to contact with 'said lugs ,y "l 5. Apparatus fo/r' charging blast furnaces' 65 .and hopper dischargmr ta'et with said lugs and rotate the'bell rod, a In testimony whereof, I have hereunto set non-rotatable lug on said sleeve amdv a second my hand. i

set of oppositely facing 'rotatable turning jaws havin inclined faces adapted to con- 5 tact with t e non-rotatable lug androtute Witnesses:

the irst set of turning' jaws; substantialfy as G.v E. F. GRAY,

described. FRANK A. POWER.

.` ALBION P. AIKEN. 

